Home / 19,860.55-27,407.57-11,907.39

Finding the Fourth Proportional to 19,860.55, 27,407.57 and 11,907.39

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Solution

The fourth proportional to 19,860.55, 27,407.57 and 11,907.39 is: 16,432.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.55 : 27,407.57 = 11,907.39 : x
  2. Step 2: Convert to fraction form
    19,860.55/27,407.57 = 11,907.39/x
  3. Step 3: Cross multiply
    19,860.55x = 27,407.57 × 11,907.39
  4. Step 4: Simplify right side
    19,860.55x = 326,352,624.94
  5. Step 5: Solve for x
    x = 326,352,624.94/19,860.55
  6. Step 6: Final answer
    x = 16,432.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.